The chemical reactions of sulfhydryl and
disulfide groups in proteins are discussed and the use
of reagents specific for these groups as a tool in electrophysiology is reviewed. The drastic and specific
changes seen ...

The odour-induced population response in the in vivo turtle (Terepene sp.) olfactory bulb consists of three oscillatory components (rostral, middle and caudal) that ride on top of a DC signal. In an initial step to determine ...

We have identified, by gas chromatography/mass spectrometry, four alkylphenols that are present in the hemolymph and tissues of the American lobster Homarus americanus and in marine sediments. These alkylphenols are used ...

The adhesion force and specificity in the first experimental evidence for cell–cell recognition in the animal kingdom were assigned to marine sponge cell surface proteoglycans. However, the question whether the specificity ...

The plus ends of microtubules have been speculated to regulate the actin cytoskeleton for the proper positioning of sites of cell polarization and cytokinesis. In the fission yeast Schizosaccharomyces pombe, interphase ...

Chemotaxis of sperm is an important step toward fertilization. During chemotaxis, sperm change their swimming behavior in a gradient of the chemoattractant that is released by the eggs, and finally sperm accumulate near ...

To obtain a more complete description of individual neurons, it is necessary to complement the electrical patch pipette measurements with technologies that permit a massive parallel recording from many sites on neuronal ...

One of the earliest effects of hypoxia on neuronal function is to produce a run-down of synaptic transmission, and more prolonged hypoxia results in neuronal death. An increase in the permeability of the outer mitochondrial ...

Zinc has been shown to modulate hemichannel currents of connexins Cx35 and Cx38 in Xenopus oocytes. In both cases the effects were biphasic; i.e., low concentrations of zinc enhanced, whereas higher concentrations decreased, ...

Bipolar cells in the vertebrate retina are second-order neurons that convey visual information from photoreceptors to ganglion cells, the neurons that relay the message to the brain. Bipolar cells consist typically of ...

A diversity of ion channels contributes to the active properties of neuronal dendrites. From the apical dendrites of hippocampal CA1 pyramidal neurons, we recorded inwardly rectifying K+ channels with a single-channel ...

We detail some of the pitfalls encountered when following live cultured somatic cells by light microscopy during mitosis. Principle difficulties in this methodology arise from the necessity to compromise between maintaining ...

The attachment to and movement of a chromosome on the mitotic spindle is
mediated by the formation of a bundle of microtubules (MTs) that tethers the
kinetochore on the chromosome to a spindle pole. The origin of these ...

Shell disease is a problem affecting lobsters in eastern Long Island Sound causing disfiguration of the shell, decreasing the lobsters' value, and whereas mild and medium levels of the disease are not lethal, ultimately, ...

Unfailing respiration depends on neural mechanisms already present in mammals before birth. Experiments were made to determine how inspiratory and expiratory neurons are grouped in the brainstem of fetal mice. A further ...

Superfast muscles of vertebrates power sound production. The fastest, the swimbladder muscle of toadfish, generates mechanical power at frequencies in excess of 200 Hz. To operate at these frequencies, the speed of relaxation ...

The endoplasmic reticulum (ER) of plant cells undergoes a drastic reorganization
during cell division. In tobacco NT-1 cells that stably express a GFP construct targeted
to the ER, we have mapped the reorganization of ...

The stable propagation of genetic material during cell division depends on the congression
of chromosomes to the spindle equator before the cell initiates anaphase. It is generally assumed
that congression requires that ...

All Items in WHOAS are protected by original copyright, with all rights reserved, unless otherwise indicated. WHOAS also supports the use of the Creative Commons licenses for original content.
A service of the MBLWHOI Library |
About WHOAS